Langchain-Chatchat vulnerable to path traversal
A vulnerability, which was classified as critical, has been found in chatchat-space Langchain-Chatchat up to 0.3.1. This issue affects some unknown processing of the file /v1/file. The manipulation of the argument flag leads to path traversal. The exploit has been disclosed to the public and may be used.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | langchain-chatchat | <= 0.3.1 | no fix |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-6855
- https://github.com/chatchat-space/Langchain-Chatchat/issues/5354
- https://github.com/chatchat-space/Langchain-Chatchat
- https://vuldb.com/?ctiid.314327
- https://vuldb.com/?id.314327
- https://vuldb.com/?submit.601162
- https://pypi.org/project/langchain-chatchat
- https://github.com/advisories/GHSA-f823-phmg-x5fr
- CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L- Weakness (CWE)
CWE-22- Platform
- Python (PyPI)
- Package
langchain-chatchat- Disclosed
- 29.06.2025
- Updated
- 11.10.2026 13:18
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-1512 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-f823-phmg-x5fr - CC BY 4.0
Vulnerability history: langchain-chatchat
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 6
- First → latest
- 06.2025 05.2026
- Without a fix
- 6
- Exploited in attacks
- 0
Severity breakdown
- Low 6
Disclosures per year
- 2025: 3
- 2026: 3
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Langchain-Chatchat vulnerable to path traversal this entry
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